As To Ride Pegasus is the only Talent and the only McCaffrey I've read, it may be that my understanding of the matters is rather limited, but I couldn't really enjoy the book.
The idea itself is interesting enough: People with supernatural psychic abilities organizing themselves to do good. But instead of writing a consistent story with characters I can relate to, the book takes on a rather episodic feel, where each character is only used to personate a single characteristic, which makes it seem like a strictly informative text rather than a story being told.
Worse, as the story progresses, I get the feeling that A. McCaffrey is trying to push her own political agenda. There may be some truth in the idea; that talented individuals are being stigmatized and hindered in the society, but, really, I get the point early, so there's no use repeating it all through the book. There is simply no end to the difficulties the honest, virtuous protagonists have to face from the distrustful, jealous, and, most loudly emphazised, mediocre "ordinary people". The story is going to great lenghts to have me sympathize with the "good" charatcers and hate the "bad", which just hurts it.
Thus, I feel no enthusiasm for other books in the series, as I have a feeling there will be more of the same.